Boneham H3222HG Press Fit Headed Drill Bushing Type H

Product Description

The BONEHAM H3222HG is a Type H press fit headed drill bushing manufactured from hardened steel for precision hole-location guidance in jig and fixture applications. It features a 0.25-inch (E-letter) inside diameter with a tight tolerance of +0.0001 to +0.0004 inches, a 0.5-inch body outside diameter, and a 1.375-inch length under the head. Hardness runs 60 to 65 HRC, providing the wear resistance required for high-cycle drilling operations. The head design retains the bushing securely in the jig plate without the need for a lock. This component is a permanent, non-renewable installation.

Type H headed press fit drill bushings are used in drill jigs and fixtures across metal fabrication, tool-and-die, and production machining environments. The counterbored design accommodates flush or recessed head seating in jig plates. Machinists, toolmakers, and fixture builders install this bushing where consistent drill, reamer, or punch guidance is required across repeated operations. It conforms to ANSI standards, making it a direct fit for standard jig-plate layouts in both job-shop and production settings.

Key Features

• Press fit installation — permanent, non-renewable bushing requiring no lock or liner
• Inside diameter tolerance of +0.0001 to +0.0004 inches for precise tool guidance
• Hardness of 60 to 65 HRC for extended service life under high-cycle drilling
• Counterbored head seating allows flush or recessed installation in jig plates
• Conforms to ANSI standards for compatibility with standard jig-plate designs
• Steel construction suitable for ferrous and non-ferrous workpiece applications

Compatibility

Designed as an ANSI-standard Type H press fit headed drill bushing suitable for use in standard jig plates and fixtures requiring a 0.5-inch body outside diameter and 0.25-inch inside diameter tool guidance bore.

Installation Notes

Press fit bushings are installed by toolmakers or machinist tradespeople using an arbor press or hydraulic press — never drive with a hammer directly on the head. Ensure the jig plate bore is machined to the appropriate interference-fit tolerance before installation. Once pressed in, this bushing is permanent and is not intended for removal or replacement. Follow applicable shop safety and fixture-design standards when preparing jig plates.